Internal structural optimization of hollow fan blade based on sequential quadratic programming algorithm  

作　　者：YANG Jian-qiu WANG Yan-rong 

机构地区：[1]School of Jet Propulsion,Beijing University of Aeronautics and Astronautics, Beijing 100191, China

出　　处：《航空动力学报》2011年第4期787-793,共7页Journal of Aerospace Power

摘　　要：Several structural design parameters for the description of the geometric features of a hollow fan blade were determined.A structural design optimization model of a hollow fan blade which based on the strength constraint and minimum mass was established based on the finite element method through these parameters.Then,the sequential quadratic programming algorithm was employed to search the optimal solutions.Several groups of value for initial design variables were chosen,for the purpose of not only finding much more local optimal results but also analyzing which discipline that the variables according to could be benefit for the convergence and robustness.Response surface method and Monte Carlo simulations were used to analyze whether the objective function and constraint function are sensitive to the variation of variables or not.Then the robust results could be found among a group of different local optimal solutions.Several structural design parameters for the description of the geometric features of a hollow fan blade were determined.A structural design optimization model of a hollow fan blade which based on the strength constraint and minimum mass was established based on the finite element method through these parameters.Then,the sequential quadratic programming algorithm was employed to search the optimal solutions.Several groups of value for initial design variables were chosen,for the purpose of not only finding much more local optimal results but also analyzing which discipline that the variables according to could be benefit for the convergence and robustness.Response surface method and Monte Carlo simulations were used to analyze whether the objective function and constraint function are sensitive to the variation of variables or not.Then the robust results could be found among a group of different local optimal solutions.

关 键 词：hollow fan blade structural optimization sequential quadratic algorithm finite element method Monte Carlo simulations 

分 类 号：V231.91[航空宇航科学与技术—航空宇航推进理论与工程]